According to a study conducted in the United States, operating on the SMARTPHONE from 9 p.m. may prevent you from getting good sleep. The journal Organizational Behavior and Human Decision Process has been in charge of publishing a study on the habits of every 250 people.

as a result of sleep. Smartphones, unlike other devices, emit blue light, and it seems that that kind of light hinders the production of melatonin that makes sleep easier for us.